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arXiv · 0710.4080

The fine-tuning problems of particle physics and anthropic mechanisms

John F. Donoghue
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Abstract

Many of the classic problems of particle physics appear in a very different light when viewed from the perspective of the multiverse. Most importantly the two great ``fine tuning'' problems that motivate the field are far less serious when one accounts for the required anthropic constraints which exist in a multiverse. However, the challenge then becomes to construct a realistic physical theory of the multiverse and test it. I describe some phenomenology of the quark and lepton masses that may provide a window to the theory that underlies the multiverse.

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John F. Donoghue. 2007-10-22. The fine-tuning problems of particle physics and anthropic mechanisms. https://arxiv.org/abs/0710.4080

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